3,306 articles
Cynanchum
Cynanchum (swallowwort) is a genus of about 250-300 Apocynaceae, Asclepiadoideae twiners published by Linnaeus in 1753, native from the tropics to temperate Asia, with Madagascar and southern China as diversity centers and many species used in traditional Chinese medicine.
Cynodon
Cynodon, a small Poaceae genus of warm-season perennial grasses from southeastern Africa; includes bermudagrass (Cynodon dactylon), a major forage and turf grass, and triploid hybrids with C. transvaalensis used on lawns and golf courses.
Cynodon dactylon
Cynodon dactylon (Bermuda grass, couch grass, doob grass) is a C4 stoloniferous perennial grass native to the Old World, widely used as tropical lawn and pasture turf, and invasive in many regions.
Cynoglossum
Cynoglossum (hound's tongues) is a Boraginaceae herb genus, Old World to Australia, about 75-100 species, with barbed glochidiate nutlets and hepatotoxic pyrrolizidine alkaloids; taxonomy recently revised toward a broader circumscription.
Cynoglossum officinale
Cynoglossum officinale, houndstongue or gypsy-flower, is a biennial Boraginaceae herb native from Europe to Siberia and Iran, invasive in North America, with barbed nutlets and pyrrolizidine alkaloids toxic to livestock via contaminated hay.
Cynometra
Cynometra (syn. Maniltoa) is a pantropical genus of Fabaceae trees and shrubs, about 85–113 accepted species, with pink young leaves, asymmetric leaflets, indehiscent fruits, timber and edible namnam fruit uses.
Cynosurus
Cynosurus (dog's-tail grass) is a Poaceae genus of about 11 species, type C. cristatus, native from the Azores and Europe to Iran, marked by sterile companion spikelets; a 2024 study splits it into Cynosurus s.s., Falona, and Ciliochloa.
Cynosurus cristatus
Cynosurus cristatus, crested dog's-tail (crested dogstail grass), a tufted perennial Poaceae pasture grass native from the Azores and Europe to northwest Iran, identified by its one-sided comb-like panicle and sterile companion spikelets.
Cyperaceae
Cyperaceae (莎草科), the sedge family of Poales: grass-like monocots with three-sided solid culms, 3-ranked leaves, and nutlets; about 5,687 species in 95 genera, sister to Juncaceae, dominant in wetlands, including papyrus.
Cyperaceae systematics and evolution
Cyperaceae systematics and evolution covers how the sedge family, about 5,687 species in 95 genera, is classified and how it evolved from a South American origin.
Cyperus
Cyperus spp., a genus of about 960 sedge species (Cyperaceae) including purple nutsedge, yellow nutsedge or tiger nut, and papyrus; cosmopolitan weeds, foods, and medicinal plants.
Cyperus esculentus
Cyperus esculentus, yellow nutsedge, chufa or tiger nut, is a perennial sedge (Cyperaceae) with edible gray tubers, a major invasive weed worldwide and a cultivated crop (var. sativus) used for Spanish horchata de chufa.
Cyperus rotundus
Cyperus rotundus, purple nutsedge or nutgrass, is a perennial C4 sedge spreading by tuber chains, one of the world's worst weeds, causing 20-90% crop losses yet used in traditional medicine.
Cypress canker
Cypress canker, or Seiridium canker, is a fungal disease of Cupressaceae caused mainly by Seiridium cardinale, first described in California in 1928 and now pandemic, especially severe on Italian cypress in the Mediterranean.
Cypress wood and its uses
Cypress wood, from the Mediterranean cypress and related species, resists fungal decay and insects, making it prized for coffins, temples, doors, boats, and furniture since antiquity.
Cypripedioideae
Cypripedioideae, the slipper orchids, is an orchid subfamily with pouch-shaped lips and two fertile anthers, in five genera (Cypripedium, Paphiopedilum, Phragmipedium, Mexipedium, Selenipedium), about 182 species, many threatened and CITES-listed.
Cypripedium
Cypripedium, the lady's slipper orchids, a genus of about 47 hardy terrestrial slipper orchids of the Northern Hemisphere, sister to all other Cypripedioideae genera, with trap-flowers pollinated by bees and CITES Appendix II listing.
Cypripedium acaule
Cypripedium acaule, pink lady's slipper or moccasin flower, is a North American orchid with two basal leaves and a pink pouch-like lip, blooming April to July on acidic soils from bogs to pine forests; IUCN Least Concern.
Cypripedium calceolus
Cypripedium calceolus, the lady's slipper orchid, is a Eurasian woodland orchid with maroon twisted petals and a yellow slipper lip; nectarless and deceptive, Least Concern globally but threatened across much of Europe.
Cypripedium reginae
Cypripedium reginae, or showy lady's slipper, is a terrestrial orchid native to central and eastern North America. It is known for its white sepals and pink, pouch-shaped lip.
Cyrilla
Cyrilla (titi) is a genus of ten accepted shrub and tree species in Cyrillaceae, Ericales, native from the southeastern U.S. to tropical America; the widespread swamp titi, Cyrilla racemiflora, forms wetland thickets, resprouts after fire, and yields valued honey.
Cytisus
Cytisus (brooms), Fabaceae genus of Eurasian and North African shrubs including Scotch broom (Cytisus scoparius); conserved name from 1798, ~30-48 accepted species, invasive in North America and Australia.
Cytisus scoparius
Cytisus scoparius, commonly known as Scotch broom, is a yellow-flowered legume shrub native to Europe, planted for ornament and now an invasive weed on most continents.
Dacrydium
Dacrydium (Sol. ex Lamb., 1806) is a genus of 21 conifer species in Podocarpaceae from Southeast Asia to New Zealand; once a broad genus, it was split, leaving rimu (D. cupressinum) as its best-known member.
Dacrydium cupressinum
Dacrydium cupressinum, rimu or red pine, is New Zealand's endemic podocarp conifer, a 30-50 m dioecious forest tree reaching 1,000 years, once the country's main native timber, IUCN Least Concern.
Dacryodes
Dacryodes is a genus of about 71 evergreen, resin-producing trees in the frankincense family Burseraceae, native to humid tropical forests of tropical America and Asia.
Dactylis
Dactylis is a small genus of tufted perennial grasses in the grass family, best known for Dactylis glomerata, the cultivated forage grass called orchardgrass or cocksfoot.
Dactylis glomerata
Dactylis glomerata, known as orchardgrass in North America and cocksfoot in Europe, is a cool-season perennial bunchgrass and a major forage grass for grazing and hay in temperate climates.
Dactylorhiza
Dactylorhiza, the marsh and spotted orchids, is a genus of about 34 temperate Northern Hemisphere orchid species with digitate tubers, defined by frequent hybridization, the incarnata/maculata polyploid complex, and disputed species limits.
Daifuku (大福)
Daifuku (大福) is a Japanese wagashi of sweet bean paste wrapped in mochi or gyuhi dough, once called harabuto-mochi; varieties include mame, kusa, shio, and ichigo (strawberry) daifuku, distinct from the daifuku bean.